Fluorescent lamp shade



April 3, 1956 s. LIEBERMAN 2,740,216

FLUORESCENT LAMP SHADE Filed July 2;, 1953 INVENTOR 60L LIEBERMAN UnitedStates Patent FLUORESCENT LAMP SHADE Sol Lieberman, Brooklyn, N. Y.

' Application July 21, 1953, Serial No. 369,486

2 Claims. (Cl. 40-131) This invention relates to new and improvedlampshades for fluorescent and other tubular lamps.

More particularly, the present invention proposes the construction of animproved lampshade for fluorescent and other tubular lamps which canquickly, easily and securely be fastened over a lamp to shade it anddiffuse the lamplight.

Another object of the present invention proposes forming the lampshadewith a laterally curved body of translucent light diffusing plastic withspaced lamp gripping web cross members each having a lamp receivingrecess and notched portions adjacent thereto so that the lampshade canbe pressed on and pulled from a tubular lamp.

Still further, the present invention proposes arranging the lampshade sothat it can be made up of a number of difierent units or body portionseach of which can be conveniently fastened to another in end to endrelation and held in such position by gravity locking means.

As a further object, the present invention proposes constructing thelampshade with means removably to hold translucent indicia units fordisplay or advertising purposes.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

On the accompanying drawings forming a material part of this disclosure:

Fig. l is a perspective view of a fluorescent tubular lamp covered by alampshade constructed and arranged in accordance with the presentinvention.

Fig. 2 is a sectional view taken on line 22 of Fig. 1.

Fig. 3 is a perspective view of another lampshade illustrating amodification of the present invention.

Fig. 4 is an end view of the structure shown in Fig. 3.

Fig. 5 is a top plan view of Fig. 3.

Fig. 6 is a fragmentary detail view illustrating the gravity lockingmeans indicated in Figs. 3 and 4.

Fig. 7 is a view similar to Fig. 6 but showing the parts engaged.

Fig. 8 is a top plan view of a lampshade similar to that shown in Figs.1 and 2 but illustrating another modification.

Fig. 9 is a fragmentary perspective view similar to Fig. 3 butillustrating a still further modification of the present invention.

The lampshade, in accordance with the first form of the inventionillustrated in Figs. 1 and 2 preferably is made of translucent light,diffusing thermoplastic but may be made of similar glass or othermaterial having such properties.

The lampshade has a body portion 15 which is laterally curved so as tobe generally arcuate in cross section. Body portion 15 is held tofluorescent tubular lamp 16 by spaced resilient tube gripping webmembers 17 of the same material as the body portion and preferablymolded integral therewith. The members 17 extend across the body portion(see Fig. 2). Each member 17 is constructed the same having a centraltube receiving opening or recess 18 and two spaced notches 19 and 20.Notch 19 is on one side of the recess 18 and notch 20 is disposed on theother side of the recess 18. The notches permit a web member 17 to beresilient enough to let its central opening or recess 18 be pushed overthe tubular lamp 16 and for the web member firmly to grip the lamponce-this occurs.

The clip-on gripping web 17 will keep the lamp shade body in selfcentered position, however the notches 19 and 20 also permit the easyremoval of the lampshade from the lamp when this is necessary.

The modification of the invention illustrated in Figs.

3 to 7, inclusive, is characterized by the provision of a shorter bodysection or portion 21 made of translucent light diffusing material andlaterally curved in a substantially U-shaped cross section. web members22 and 23 made of the same material as the body portion are spaced atthe ends of the body portion to be end sections thereof. Members 22 and23 extend across the body portion 21 and each has a central tube recessor opening 24 with notches 25 and 26 on either side of the recess. Endsection 22 has gravity locking members 27 on its outer face 28 removablyto connect body portion 21 with a similar body portion 29 (see Figs. 6and.7) having an end section 30 with openings 31 therein removably toreceive the locking members 27. The locking members 27 are each in theform of a hook with an outwardly extending portion 32 and a downwardlyextending portion 33. Opening 31 is large enough to pass the downwardlyextending portion 33 and the hook fits over the lower edge of opening 31held there by gravity as well as by frictional contact.

End section 23 of the body portion 21 has an opening 34 like opening 31removable to receive the hook of another body portion. In this manner anumber of body portions may be connected end to end to make up alampshade.

The modification of the present invention illustrated in Fig. 8 ischaracterized by the provision of a body portion 35 having a bottom withspaced integral raised and crossed bars 36 and 37 inside the body andcriss-crossed further to diffuse lamplight.

The modification of the invention shown in Fig. 9 is characterized bythe provision of a body portion 38 having inside thereof inwardlyprojecting prongs 39 removable to hold translucent indicia 40 in thebody portion. In this manner, the lampshade may be used for display oradvertising purposes.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new, and desired tosecure by United States Letters Patent is:

1. A light diffusing lampshade for fluorescent and other tubular lampscomprising a laterally curved body portion of translucent lightdiffusing material, spaced internal resilient tube gripping web membersintegral with and inside the body portion and extending across it, eachof said members having an upper edge flush with the top of the bodyportion with a centrally disposed tube receiving recess and a V-shapednotch on either side of the recess for forcing the tube receiving recesson and Resilient tube gripping annals oil a tubular lamp, and prongs onthe body portion to secure translucent indicia thereto.

2. A light diffusing lampshade for fluorescent and other tubular lampscomprising a laterally curved body portion of translucent lightdiffusing material, a second similarly shaped body portion of the samematerial, internal resilient tube gripping Web members of the samematerial in said body portions, each of said body portions having one ofsaid members as an end section, each said end section having a gravitylocking member on an outer face thereof removable to connect the bodyportions end to end to form a continuous lampshade, one of said gravitylocking members on one end section of one body portion being anoutwardly and a downwardly projecting hook and one of said gravitylocking members on one 4, end of the other body portion being an openingremovable to receive and pass the outwardly and downwardly projectinghook for the hook to engage the lower edge of said opening, and prongson the body portion to secure translucent indicia thereto.

References Cited in the file of this patent UNITED STATES PATENTS D.99,991 Bristol June 16, 1936 2,078,370 Corbett Apr. 27, 1937 2,259,152Claspy Oct. 14, 1941 2,277,433 Guth Mar. 24, 1942 2,551,710 SlaughterMay 8, 1951 2,583,939 French Jan. 29, 1952

